text: const modelCollection = require('./lib/model-collection');
  
  module.exports = {
  	registerDynamic: modelCollection.registerDynamic,
  	KalmanFilter: require('./lib/kalman-filter'),
  	registerObservation: modelCollection.registerObservation,
  	buildObservation: modelCollection.buildObservation,
  	buildDynamic: modelCollection.buildDynamic,
  	getCovariance: require('./lib/utils/get-covariance'),
  	State: require('./lib/state'),
  	checkCovariance: require('./lib/utils/check-covariance'),
  	correlationToCovariance: require('./lib/utils/correlation-to-covariance'),
  	covarianceToCorrelation: require('./lib/utils/covariance-to-correlation')
  };
  